﻿using System;
using System.Configuration;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using Channelvn.Cached.Common;
using System.Data;
using QLHD.DAL;
using System.Web.Caching;
using System.Text.RegularExpressions;

namespace Channelvn.Cached.UrlRewrite
{
    public class RewriteModule : IHttpHandlerFactory, IRequiresSessionState
    {
        private static string[] mobiles = new string[] { "iphone", "opera mini", "sony", "htc", "eric", "moto", "panasonic", "sharp", "philips", "samsung", "android", "nokia", "blackberry", "galaxy" };
        public IHttpHandler GetHandler(HttpContext context, string requestType, string url1, string pathTranslated)
        {
            //if (isMobileBrowser()) // Is mobile
            if (IsMobileRedirect(HttpContext.Current) || isMobileBrowser()) // Is mobile
            {
                if (!IsExistCookieNoRedirect())
                {
                    string urlBrowser = HttpContext.Current.Request.Url.AbsolutePath;
                    if (urlBrowser == "/default.aspx")
                        urlBrowser = "/home.htm";
                    _301Redirection.RedirectToMobile("http://m.QLHDconomy.vn" + urlBrowser);
                }
            }
            bool isrewritenull = false; 
            string oldQuery = "";
            if (context.Request.Url.Query.IndexOf("home=detail&page=category&cat_name=") != -1)
            {
                oldQuery = context.Request.Url.Query;
            }
            if (HttpContext.Current.Request.Url.Query != String.Empty)
            {
                if (context.Request.Url.Query.Length > 0)
                {
                    context.Items["VirtualUrl"] = context.Request.Path + context.Request.Url.Query;
                }
            }
            if (context.Items["VirtualUrl"] == null)
            {
                context.Items["VirtualUrl"] = context.Request.Path;
            }

            string currentUrl = context.Request.Url.AbsolutePath;

            // if (url.IndexOf("/home/") != -1)
            //     url = url.Replace("/home/", "/");
            string rewrite = "";

           // string refer = HttpContext.Current.Request.UrlReferrer.ToString();
            string sCat_ID = HttpUtility.ParseQueryString(rewrite).Get("Cat_ID");
            _301Redirection _301 = new _301Redirection();
            if (!_301.Redirect(currentUrl + (context.Request.Url.Query.Length > 0 ? "?" + HttpContext.Current.Request.Url.Query.Replace("?", "") : "")))
            {

                RewriteRules rewriteRules = RewriteRules.GetCurrentRewriteRules();

                rewrite = rewriteRules.GetMatchingRewrite(currentUrl);
                sCat_ID = HttpUtility.ParseQueryString(rewrite).Get("Cat_ID");

                //if (context.Request.Url.Host != "doanhnhan.QLHDconomy.vn")
                //{
                //    if (sCat_ID == "5" && rewrite.Contains("CatParent_ID=0") && !rewrite.Contains("News_ID="))
                //    {
                //        _301Redirection.MainRedirectTo("http://doanhnhan.QLHDconomy.vn");
                //        return null;
                //    }
                //    else if (rewrite.Contains("CatParent_ID=5") || sCat_ID == "5")
                //    {
                //        _301Redirection.MainRedirectTo("http://doanhnhan.QLHDconomy.vn" + currentUrl);
                //        return null;
                //    }
                //}

                string[] newRewriteUrl = null;
                if (rewrite.Contains("?"))
                {
                    newRewriteUrl = rewrite.Split('?');

                    long newsID = Convert.ToInt64(HttpUtility.ParseQueryString(newRewriteUrl[1]).Get("News_ID"));
                    int catID = Convert.ToInt32(HttpUtility.ParseQueryString(newRewriteUrl[1]).Get("Cat_ID"));
                    int catParentID = Convert.ToInt32(HttpUtility.ParseQueryString(newRewriteUrl[1]).Get("CatParent_ID"));
                    int PageType = Convert.ToInt32(HttpUtility.ParseQueryString(newRewriteUrl[1]).Get("PageType"));

                    string strCheck = string.Empty;

                    if (!string.IsNullOrEmpty(strCheck))
                    {
                        _301Redirection.RedirectTo(strCheck);
                        return null;
                    }
                }
                
                if (oldQuery != "")
                {
                    rewrite = "";
                }
                if (!string.IsNullOrEmpty(rewrite))
                {
                    context.RewritePath("~" + rewrite);
                }    
                else
                {
                    isrewritenull = true;
                http://staticpress.vcmedia.vn/QLHD/Images/QLHDv9/538419_183631831758229_671087046_a.jpg
                    rewrite = context.Request.Path + context.Request.Url.Query;
                }
            }

            if (rewrite.ToLower().Contains("/home/timkiem.aspx"))
            {
                if(context.Request.Url.Query.Length> 0)
                    rewrite = rewrite.ToLower().Replace("/home/timkiem.aspx", "/tim-kiem.htm") + context.Request.Url.Query;
                _301Redirection.RedirectTo(rewrite);
            }
                
            //if (!String.IsNullOrEmpty(sCat_ID))
            //{
            //    if (sCat_ID != "9999")
            //    {
            //        CN_CategoryEntity ce = new CN_CategoryEntity();
            //        int Cate_ID = Convert.ToInt32(sCat_ID);
            //        if (Cate_ID > 0)
            //        {
            //            DataTable dtCate = CN_Cached.CategoryDetail(Cate_ID);

            //            if (dtCate != null && dtCate.Rows.Count > 0)
            //            {
            //                DataRow dr = dtCate.Rows[0];
            //                ce.CatName = dr[CN_Category.CAT_NAME].ToString();
            //                int catParentID;
            //                int.TryParse(dr[CN_Category.CAT_PARENTID].ToString(), out catParentID);
            //                ce.CatParentID = catParentID;
            //                ce.CatID = Cate_ID;
            //                ce.Href = CN_Cached.BuildChildCatUrl(dr[CN_Category.CAT_PARENTID].ToString(), dr[CN_Category.CAT_ID].ToString(), CN_Cached.UnicodeToKoDauAndGach(dr[CN_Category.CAT_NAME].ToString()));
            //                ce.DisplayUrl = dr[CN_Category.CAT_DISPLAYURL].ToString();
            //            }
            //        }

            //        if (ce.Href.Length > 0)
            //        {
            //            string catname = Lib.QueryString.catname;
            //            if (catname != "" && catname != ce.DisplayUrl)
            //            {
            //                string trueURL = ce.Href;
            //                _301Redirection.RedirectTo(trueURL);
            //                return null;
            //            }
            //        }
            //        else
            //        {
            //            rewrite = "/404.aspx";
            //        }
            //    }
            //}

            if (oldQuery != "")
            {
                rewrite = "/404.aspx?404;http://QLHDconomy.vn:80/" + oldQuery;
            }
            string newFilePath = rewrite.IndexOf("?") > 0 ? rewrite.Substring(0, rewrite.IndexOf("?")) : rewrite;

            if (ConfigurationManager.AppSettings["AllowDistCache"] == "1" && context.Request.Form.Count == 0)
            {
                // Check cache
                CacheSettings config = CacheSettings.GetCurrentSettings();
                 
                // Code tạm để lấy danh sách key control chi tiết
                //string format = "<Cache name=\"{0}\" containerId=\"{1}\" assembly=\"{2}\" enableCache=\"true\" cacheExpire=\"864000\" topEffectRecords=\"0\" runOnStartup=\"false\" params=\"{3}\" category=\"\" />";
                //System.Text.StringBuilder str = new System.Text.StringBuilder();
                //foreach (CacheSettings.PageSetting page in config.PageSettings)
                //{
                //    foreach (CacheSettings.ControlSetting control in page.ControlSettings)
                //    {
                //        string param = "";
                //        if (control.Properties.Count > 0)
                //        {
                //            string[] keys = new string[control.Properties.Count];
                //            control.Properties.Keys.CopyTo(keys, 0);
                //            foreach (string key1 in keys)
                //            {
                //                param += ",{'" + key1 + "':'" + control.Properties[key1].ToString() + "'}";
                //            }
                //            if (!string.IsNullOrEmpty(param))
                //            {
                //                param = param.Substring(1);
                //                param = "[" + param + "]";
                //            }
                //        }
                //        str.Append(string.Format(format, control.ContainerID, control.ContainerID, control.Assembly, param));
                //    }
                //}

                CacheSettings.PageSetting pageConfig = config.GetPageSetting(rewrite);

                string dateSearch = Lib.QueryString.ViewByDate_Day + "_" + Lib.QueryString.ViewByDate_Month + "_" +
                                    Lib.QueryString.ViewByDate_Year;
                string key = string.Format(Constants.CACHE_NAME_FORMAT_HTML_PAGE_CONTENT, Lib.QueryString.CategoryName, Lib.QueryString.Thread_ID, Lib.QueryString.NewsID, Lib.QueryString.PageIndex, dateSearch);

                if(config.EnableCache && pageConfig.EnableCache && CacheController.IsCacheExists(pageConfig.Category ,key))
                {
                    //context.Response.Clear();
                    context.Response.ContentType = "text/html";
                    if (!string.IsNullOrEmpty(pageConfig.Category))
                    {
                        context.Response.Write(CacheController.GetCache(pageConfig.Category, key));
                    }
                    else
                    {
                        context.Response.Write(CacheController.GetCache(key));
                    }          
                    return context.Handler;
                }           
            }  
                 
            if (string.IsNullOrEmpty(newFilePath))
                newFilePath = "/blank.aspx";


            try
            {
                return PageParser.GetCompiledPageInstance(newFilePath, context.Server.MapPath(newFilePath), context);
            }
            catch (Exception ex)
            {
                return PageParser.GetCompiledPageInstance("/404.aspx", context.Server.MapPath("/404.aspx"), context);
            }
        }
        private bool IsMobileRedirect(HttpContext context)
        {
            bool isReturn = false;
            if (context.Request.Browser["IsMobileDevice"] == "true")
            {
                isReturn = true;
            }
            return isReturn;
        }

        private bool IsExistCookieNoRedirect()
        {
            bool isReturn = false;
            if (HttpContext.Current.Request.Url.Query.IndexOf("mobile=true") >= 0)
            {
                isReturn = true;
                HttpCookie cookie = new HttpCookie("browser", "web");
                try
                {
                    cookie.Expires = DateTime.Now.AddMinutes(30);
                    HttpContext.Current.Response.Cookies.Add(cookie);
                }
                catch (Exception ex)
                {
                }

            }
            else if (HttpContext.Current.Request.Url.Query.IndexOf("removecookie=true") >= 0)
            {
                isReturn = false;
                HttpCookie myCookie = HttpContext.Current.Request.Cookies.Get("browser");
                if (myCookie != null)
                    myCookie.Values.Clear();
            }
            else
            {

                HttpCookie myCookie = HttpContext.Current.Request.Cookies.Get("browser");
                if (myCookie != null && myCookie.Value.ToLower() == "web")
                {
                    isReturn = true;
                }


            }

            return isReturn;
        }

        public static bool isMobileBrowser()
        {
            //GETS THE CURRENT USER CONTEXT
            HttpContext context = HttpContext.Current;

            //FIRST TRY BUILT IN ASP.NT CHECK
            if (context.Request.Browser.IsMobileDevice)
            {
                return true;
            }
            //THEN TRY CHECKING FOR THE HTTP_X_WAP_PROFILE HEADER
            if (context.Request.ServerVariables["HTTP_X_WAP_PROFILE"] != null)
            {
                return true;
            }
            //THEN TRY CHECKING THAT HTTP_ACCEPT EXISTS AND CONTAINS WAP
            if (context.Request.ServerVariables["HTTP_ACCEPT"] != null &&
                context.Request.ServerVariables["HTTP_ACCEPT"].ToLower().Contains("wap"))
            {
                return true;
            }
            //AND FINALLY CHECK THE HTTP_USER_AGENT 
            //HEADER VARIABLE FOR ANY ONE OF THE FOLLOWING
            if (context.Request.ServerVariables["HTTP_USER_AGENT"] != null)
            {
                #region
                //Create a list of all mobile types
                //string[] mobiles = { "midp", "j2me", "avant", "docomo", "novarra", "palmos", "palmsource", "240x320", "opwv", "chtml", "pda", "windows ce", "mmp/", "blackberry", "mib/", "symbian", "wireless", "nokia", "hand", "mobi", "phone", "cdm", "up.b", "audio", "SIE-", "SEC-", "samsung", "HTC", "mot-", "mitsu", "sagem", "sony", "alcatel", "lg", "eric", "erics", "ericsson", "SonyEricsson", "vx", "NEC", "philips", "mmm", "xx", "panasonic", "sharp", "wap", "sch", "rover", "pocket", "benq", "java", "pt", "pg", "vox", "amoi", "bird", "compal", "kg", "voda", "sany", "kdd", "dbt", "sendo", "sgh", "gradi", "jb", "dddi", "moto", "iphone" };

                //Loop through each item in the list created above 
                //and check if the header contains that text
                foreach (string s in mobiles)
                {
                    if (context.Request.ServerVariables["HTTP_USER_AGENT"].
                                                        ToLower().Contains(s.ToLower()))
                    {
                        return true;
                    }
                }
                #endregion
                //string u = context.Request.ServerVariables["HTTP_USER_AGENT"];
                //Regex b = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);
                //Regex v = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline);
                //if ((b.IsMatch(u) || v.IsMatch(u.Substring(0, 4))))
                //{
                //    return true;
                //}
            }

            return false;
        }

        private void Redirect301(string url)
        {
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.Status = "301 Moved Permanently";
            HttpContext.Current.Response.AddHeader("Host", url);
            HttpContext.Current.Response.End();
        }
        public void ReleaseHandler(IHttpHandler handler)
        {
        }

        
    }
}
